carti scolare
|___|___|___|___|___|___|___|___|
carti de istorie 2/8
|___|___|
rest 1 |___|___|___|___|___|___|
carti de geografie
|___|___|___|___|___|
rest 2 |___| 12 carti cultura generala
12 × 8 = 96 carti scolare
5 × 12 = 60 carti de geografie
2 × 12 = 24 carti de istorie
1/8 reprezinta cartile de cultura generala
Verificare:
60 + 24 + 12 = 96
96 : 8 = 12
